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A296379
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1's.
1
1, 10, 127, 5389, 684894, 229596763, 221204933878, 598689439654822, 4539934561727233074, 96984131003613095035054, 5821690240110920955236476834, 982375769397408661603126936349101
OFFSET
1,2
COMMENTS
Diagonal of A296386.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1
..1..1..0..0..0. .0..1..1..0..1. .0..0..0..0..1. .0..0..1..0..1
..0..0..0..0..1. .0..0..0..1..1. .0..1..0..1..0. .0..1..0..1..0
..1..0..1..0..1. .0..0..0..0..0. .1..0..0..0..0. .0..0..0..0..0
..1..1..0..1..0. .1..1..1..0..0. .0..1..1..0..0. .0..1..1..1..0
CROSSREFS
Cf. A296386.
Sequence in context: A245923 A218474 A234284 * A183538 A184678 A360941
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 11 2017
STATUS
approved